Improvement in harvesting-machines



UNITED STATES PATENT OFFICE.

IMPROVEMENT IN HARvl-:sTlNG-MACHINES.

Specification forming part of Letters Patent No. 24,226, dated May 31, 1859.

To all whom it may concern:

Be it known that I, JOHN McPHERsoN, o

Pennington, in the county of Mercer and State of New Jersey, have invented a new and useful Improvement in Harvesters 5 and I do here-A by declare that the following is a full, clear, and exact description ot' the same, reference being had to the accompanying drawings, forming a part of this specification, in which` Figure 1 is a plan or top view of a harvester with my improvement applied to it. Fig. 2 is a rear view of the same.

Similar letters-of reference in each of the several figures indicate corresponding parts.

My invention relates to that class ot' harvesters which deliver the grain in gavels in rear ofthe machine.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A is the main wheel of the harvester, the axle B of which has its bearing in the frame G of the machine. The inner side of the wheel Ais cogged, and gears into the pinion d on the roller c, the latter having its bearings at e e in the frame of the machine.

f is a roller, havingits bearings at ggin the main frame of the machine. An endless aprQn, z', passes around the rollers c and f for the purpose of conveying the grain from the endless apron i onto the curved flexible slotted apron 7c.' 'Ihe apron k is curved, as shown in the drawings, in order to deliver the grain in gavels at the rear of the machine, so that the gavels lie transversely to or at right angles' with the line of travel of the machine. 1t is supported by two conical rollers, m and n, which have their bearings in the main frame of the machine. The apron lr is operated by means of a pinion, o, on the axis ot' the conical roller n, gearing into the pins r on the wheel w, the latter having its axle-bearing in the main frame of the machine. The gearing of the pinion o and wheel w, which operatethe curved exible slotted platform, is so arranged relatively, as regards speed, to the gearing which operates the endless apron t that the grain is deposited in gavels, instead of being deposited on the ground continuously, which would occur if both aprons moved with the same velocity. The wheel w is placed obliquely in order to prevent side draft.

'Ihe apron la is constructed by attaching to an endless apron, 1^, passing` around the conif cal rollers m u, by any suitable means, theslats s, which are made tapering, in order that they may conform tol the curved shape of the platform. The slats open in passing around the conical rollers m and seize the grain delivered by the apron c', and the spaces between the slats likewise assist in the delivery of the grain.

I am aware that conical rollers have been employed for the delivery of grain in gavels at the rear of the machine; but such rollers, apart from the expense of construction and the increased weight of the machinea very important point in the practical employment of harvester's-have a tendency to draw the grain between them as it falls longitudinally with them, thereby clogging the machine, increasing the draft, injuring the grain, and rendering the machine inoperative.

I am also aware that curved belts have been used, probably to obviate the defects arising` from the use of the conical rollers; but when the curved belts are employed the grain is liable to fall between them, and in its fall prevents the formation of the grain into gavels in rear of it by obstructing the passage of the grain over the belts.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The curved slotted iiexible apron lf, when constructed in the manner land for the purposes set forth. v

2. The combination of the endlessapron i with the curved slotted iiexible apron k, the whole being constructed and arranged in the manner and for the purposes set forth.

The above specification ot my improvement in harvesting-machines signed by me this 3d day of May, 1859.

JOHN MGPHERSON.

Witnesses:

G. YORKE ATLEE. H. H. YOUNG. 

